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A new multivariate Archimedean copula estimation method is proposed in a non-parametric setting. The method uses the so called Geometrically Designed splines (GeD splines), recently introduced by Kaishev et al. (2006 a,b) [10] and [11], to represent the cdf of a random variable Wθ, obtained through the probability integral transform of an Archimedean copula with parameter θ. Sufficient conditio...

In Blind Source Separation problems it is assumed that the approximate diagonalization of a matrix set achieves more robust solutions than the simultaneous diagonalization of a matrix pencil. In this work we will analyse approximate diagonalization methods using a generalized eigendecomposition (GED) of any pair of a given matrix set. The constraints of GED solutions provide a criterion to choo...

The properties of acoustic kinetic energy density and total energy density of sound fields in lightly damped enclosures have been explored thoroughly in the literature. Their increased spatial uniformity makes them more favorable measurement quantities for various applications than acoustic potential energy density (or squared pressure), which is most often used. In this paper, a generalized ac...

We address the problem of class imbalance in supervised grammatical error detection (GED) for non-native speaker text, which is the result of the low proportion of erroneous examples compared to a large number of error-free examples. Most learning algorithms maximize accuracy which is not a suitable objective for such imbalanced data. For GED, most systems address this issue by tuning hyperpara...

The graph edit distance (GED) is a flexible measure which widely used for inexact matching. Since its exact computation [Formula: see text]-hard, heuristics are in practice. A popular approach to obtain upper bounds GED via transformations the linear sum assignment problem with error-correction (LSAPE). Typically, local structures and distances between them employed carrying out this transforma...

The molecular structures of Se(SCH(3))(2) and Te(SCH(3))(2) were investigated using gas-phase electron diffraction (GED) and ab initio and DFT geometry optimisations. While parameters involving H atoms were refined using flexible restraints according to the SARACEN method, parameters that depended only on heavy atoms could be refined without restraints. The GED-determined geometric parameters (...

ABSTRACT This study is an examination of an'attempt within the Adult Basic Education Department at College of the Mainland to reduce the anticipatory test fear in normal adult students preparing for the General Educational Development (GED) Test. The experiment covered a time span of 16 weeks and made-application of systematic desensitization, a therapeutic technique proper to the writings and ...

Graph edit distance (GED) is a powerful and flexible graph matching paradigm that can be used to address different tasks in structural pattern recognition, machine learning, and data mining. In this paper, some new binary linear programming formulations for computing the exact GED between two graphs are proposed. A major strength of the formulations lies in their genericity since the GED can be...